Dialing in mechanics for (4 seam) fastball velo & COMMAND 10-02-23

After weeks of trial & error, advances & setbacks, first chasing velo and now command, complicated by a nagging cold that wouldn't go away, may finally have distilled (fastball) mechanics to 3 simple cues improving efficiency and repeatability. Drift... Stay Narrow...& Violent (back foot)
Just 3 pitches total for videoing mechanics purposes. This was 3rd and final pitch
16y 2mo 157lbs